Shelf bracket



FIG. 1 is a top right front perspective view of a shelf bracketembodying our design;

FIG. 2 is a top plan view of our shelf bracket;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side elevational view;

FIG. 5 is a front elevational view; and

FIG. 6 is a rear elevational view.

The ornamental design for a shelf bracket, as shown and described.